RS-based Evaluation of Forest Cover Changes in Nanling National Nature Reserve

作     者：LIU Zongjun LIAO Fangjun 

作者机构：Nanling National Nature Reserve Shenzhen Fairy Lake Botanical GardenChinese Academy of Sciences 

出 版 物：《Journal of Landscape Research》 (景观研究（英文版）)

年 卷 期：2015年第7卷第5期

页      面：33-37,40页

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：Sponsored by Digital Monitoring Management and Protection Program of Nanling National Nature Reserve(GDHS13SGHG05025) 

主　　题：Forest landscape pattern Landscape index Nature reserve Driving force 

摘      要：3S technology was applied to analyze spatio-temporal changes of landscape pattern in Nanling National Nature Reserve and the driving forces. The results showed that the study area was dominated by forest landscape from 1988 to 2009, accounting for 95% of the total area, among all forest landscapes, evergreen broadleaved forest accounted for the largest ratio(50%). In terms of landscape fragmentation, landscape density index of the study area increased, landscape fragmentation was aggravated; patch density of core zone declined slightly, mean patch area of all landscape types increased, landscape fragmentation decreased slightly; buffer zone and experimental zone witnessed the aggravation of fragmentation. In terms of landscape diversity, landscape pattern of the study area became increasingly complex, diversity index increased, landscape heterogenization was enhanced; landscape diversity of the core zone increased slightly, that of the buffer zone increased greatly, but that of the experimental zone declined and landscape heterogenization reduced. Landscapes in the whole area grew more diversified, while landscape pattern of the core zone was simplified, that of the buffer zone witnessed slight changes, and that of the experimental zone kept consistent with that of the study area. In terms of driving forces of landscape pattern change, natural factors have contributed to the landscape changes in the study area, but human factors such as forest management, forest tourism, local residents an economic factors played a dominant role. With the increasing external interventions to the landscape pattern change, the contradiction between landscape eco-environment protection and resource development and utilization in Nanling National Nature Reserve will be increasingly sharpened.